C++ Iterator Library - output_iterator_tag

Description

It is used to identify the category of an iterator as an output iterator and all output iterators support at least one the following operations.

property valid expressions

It is a copy-constructible,copy-assignable and destructible

property	valid expressions
It is a copy-constructible,copy-assignable and destructible	`X b(a);` `b = a;`
It can be dereferenced as an lvalue (if in a dereferenceable state). It shall only be dereferenced as the left-side of an assignment statement. Once dereferenced, its iterator value may no longer be dereferenceable.	`*a = t`
It can be incremented.	`++a` `a++` `*a++ = t`

X b(a);

b = a;

It can be dereferenced as an lvalue (if in a dereferenceable state).

It shall only be dereferenced as the left-side of an assignment statement.

Once dereferenced, its iterator value may no longer be dereferenceable.

*a = t

It can be incremented.

++a

a++

*a++ = t

property	valid expressions
It is a copy-constructible, copy-assignable and destructible	`X b(a);` `b = a;`
It can be dereferenced as an lvalue (if in a dereferenceable state). It shall only be dereferenced as the left-side of an assignment statement. Once dereferenced, its iterator value may no longer be dereferenceable.	`*a = t`
It can be incremented.	`++a` `a++` `*a++ = t`
Lvalues are swappable.	`swap(a,b)`

Following is the declaration for std::output_iterator_tag.

struct output_iterator_tag {};

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